Biofouling control in recycled cooling water with bromo chloro dimethlhydantoin

Abstract

A fouling monitor system was installed on a slip-stream from the cooling water return line to monitor biofouling and to determine effectiveness of various biocide treatments. Its purpose was to simulate conditions in the main system and provide a real time readout of the extent of biofouling as measured by reduction in heat transfer. The total halogen residual in the cooling water was measured six times per day by the DPD colorimetric method.